Spa cover



FIG. 1 is a front elevation view of the spa cover showing my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof.

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a perspective view thereof in a partially folded configuration; and,

FIG. 8 is a front cross-sectional view thereof taken along line 8-8 in FIG. 5, with part of the edge enlarged for clarity.

The broken lines depicting an exemplary spa in FIGS. 7 and 8 depict environmental subject matter only and form no part of the claimed design. 

CLAIM I claim the ornamental design for a spa cover, as shown and described. 